Publications

Measurements of the intensity of an injection locked 1.54 micron InGaAsP laser are reported.

A major challenge in the optical networking in the metropolitan area is the design of a robust and simple access scheme for building a flexible metro network.

The global content distribution infrastructure is expanding towards the edge of the Internet with cache servers deployed closer to the clients to enable a highly available and bandwidth-efficient d

The increasing number of machines and technologies involved in existing infrastructures and networks hardens their management.

The complexity of modern software systems is growing fast, with new version of software released every few months when modern development methodologies are used.

We show that for any constant $ve>0$, there is no $Omega (log^{1-ve}M)$-approximation algorithm for the directed congestion minimization problem on networks of size $M$ unless $NPsubseteq ZPTIME

We show that there is no log(1/3-epsilon) M approximation for the undirected Edge-Disjoint Paths problem unless NP subset of ZPTIME(n(polylog(n))), where M is the size of the graph and epsilon is a

Transmission of 8-bit mu-law PCM signals using M-level weighted QAM (WQAM), M=16, 64 and 256, over Gaussian and Rayleigh fading channels is examined.

LHE (logarithmical hopping encoding) is a computationally efficient image compression algorithm that exploits the Weber-Fechner law to encode the error between colour component predictions and the

Digital storage of information 0 1 photographic emulsion is char1 acterized by the large amounts of information that can be stored 0 1 a 1 small physical area.1 This same advantage also implies the